import axios from 'axios'
import { Message, Notification } from 'element-ui'
import store from '@/store'
import router from '@/router'
import { getToken } from '@/utils/auth'
import qs from 'qs';

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000, // request timeout
});

service.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded';
service.defaults.headers['notify'] = true;
//'Content-Type' = 'application/json;charset=UTF-8'

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent
    if (config.headers['Content-Type'] != 'application/json;charset=UTF-8') {
      config.data = qs.stringify(config.data);
    }

    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['X-TOKEN'] = 'UUID ' + getToken()
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data

    // if the custom code is not 20000, it is judged as an error.
    if (res.code !== 'OK') {
      Message({
        message: res.errMsg || 'Error',
        type: 'error',
        duration: 5 * 1000
      })

      // // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      // if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
      //   // to re-login
      //   MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
      //     confirmButtonText: 'Re-Login',
      //     cancelButtonText: 'Cancel',
      //     type: 'warning'
      //   }).then(() => {
      //     store.dispatch('user/resetToken').then(() => {
      //       location.reload()
      //     })
      //   })
      // }
      return Promise.reject(new Error(res.message || 'Error'))
    } else {
      var config = response.config;
      if (config.method === 'post' && config.headers.notify) {
        Notification.success({
          title: '成功',
          message: res.msg,
          duration: 3500
        })
      }
      return res
    }
  },
  error => {
    const res = error.response.data
    Message({
      message: res.errMsg || 'Error',
      type: 'error',
      duration: 5 * 1000
    })
    if (error.response.status == 401) {
      store.dispatch('user/resetToken');
      router.push({ 'path': 'login' })
    }
    return Promise.reject(error)
  }
)

export default service
